Home / 216,566.88-298,868.88-121,077.60

Finding the Fourth Proportional to 216,566.88, 298,868.88 and 121,077.60

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Solution

The fourth proportional to 216,566.88, 298,868.88 and 121,077.60 is: 167,090.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,566.88 : 298,868.88 = 121,077.60 : x
  2. Step 2: Convert to fraction form
    216,566.88/298,868.88 = 121,077.60/x
  3. Step 3: Cross multiply
    216,566.88x = 298,868.88 × 121,077.60
  4. Step 4: Simplify right side
    216,566.88x = 36,186,326,705.09
  5. Step 5: Solve for x
    x = 36,186,326,705.09/216,566.88
  6. Step 6: Final answer
    x = 167,090.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.